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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-64549 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bpa10x: avoid OOB read of revision string in bpa10x_setup() bpa10x_setup() sends the vendor command 0xfc0e and passes the response to bt_dev_info() and hci_set_fw_info() as a "%s" string starting at skb->data + 1, without checking the length: bt_dev_info(hdev, "%s", (char *)(skb->data + 1)); hci_set_fw_info(hdev, "%s", skb->data + 1); A device that returns a one-byte response (status only) leaves skb->data + 1 past the end of the data, and the %s walk reads adjacent slab memory until it meets a NUL. The same happens when the payload is not NUL-terminated within skb->len. The out-of-bounds bytes end up in the kernel log and the firmware-info debugfs file. Print the revision string with a bounded "%.*s" limited to skb->len - 1 instead. This keeps the string readable for well-behaved devices while never reading past the received data, and does not fail setup, so a device returning a short or unterminated response keeps working.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/1813add71e386f77b3040e6c8dc9b7b3ff965a6c kernel.org
https://git.kernel.org/stable/c/4b4008dda1d0c6e598d7865631ad4eda63a560f0 kernel.org
https://git.kernel.org/stable/c/7a64f39ebe1bacd9004a62eceadac0b122ec3cc2 kernel.org
https://git.kernel.org/stable/c/a8e169d308775039200bb9c905c7ce420db6e8c5 kernel.org
https://git.kernel.org/stable/c/bd56c23f1f8681a2857ee924a8bd3abf87c8913b kernel.org
https://git.kernel.org/stable/c/bfc9e7be289df11e8e38c98cd78019d67fdd0bd5 kernel.org
https://git.kernel.org/stable/c/dd068ef044128db655f48323a4acfd5907e04903 kernel.org
https://git.kernel.org/stable/c/f80b4afe893dffa9fabdbf80fb4d6782b24a6793 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-64549
NVD Published Date:
07/27/2026
NVD Last Modified:
07/27/2026
Source:
kernel.org